Grinder



Feb. 23 1926.

F. E. HEERS GRINDER Filed March 29 1924 2 Sheets-Sheet 1 INVENTOR WITNESS:

Feb. 23 1926.

WITNESS:

7 1,574,650 F. E. HIERS GRINDER Filed March 29, 1924 2 Sheets-Sheet 2 firm Mam INVENTOR A I I'ORNEY Patented Feb. 23, 192.6.

- UNITED STATES 1,574,65t PATENT OFFICE.

FRANKLIN E. HIERS, ANDERSON, INDIANA.

GRINDER.

Application filed. March 29, 192-1. Serial No. 702,913.

To all whom it may concern.-

Be it known that I, FRANKLIN E. I-Irnns, a citizen of the United States, residing at Anderson, in the county of Madison and State of Indiana, have invented new and useful Improvements in Grinders, of which the following is a specification.

This invention. relates to a grinding 'device, the general object of the invention being to provide a simple device which can be attached to a flexible power shaft, such as used on electric hair clippers and the like, and the parts of which are so arranged that both hands of the operator are left free to handle the tool or implement being operated upon.

Another object of the invention is to provide means whereby the device can be attached to barbers chairs and other supports.

A further object of the invention is to provide means whereby an ordinary beveled grinding wheel can be used with the implement or a corrugated wheel may be used for corrugating a surface.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, ref-- erence will be had to the accompanying drawings wherein like characters denote like or corresponding part-s'throughout the several views, and in which Figure 1 is a front View of the device with the beveled grinding wheel thereon. a

Figure 2 is a side view with parts broken away. I

Figure 3 is a rear view with parts removed and parts broken away.

Figure 4 is a view 'with parts broken away showing a corrugating wheel on the device.

Figure 5 is a side view with parts broken away of Figure 4.

Figures 6, 7 and 8 are views of various brackets for attaching the device to different supports.

In these views, 1 indicates a casing in which is journaled a vertical shaft 2 which is provided with a worm 3 and which has its lower end formed to receive the cou ling 4 for connecting the shaft with a fleXibl; shaft 5 which may be attached to an electric motor, such as used for operating hair clippers or other source of power. Thecoupling is held in connected position by means of a ball 6 which is pressed against the coupling by a spring 7 arranged in a screw cap 8. A transversely extending shaft 9-is journaled in the casing 1 andhas a worm gear 10 thereon which meshes with the worm 8. This shaft may have attached to its outer end'in any suitable manner a beveled grinding wheel 11 or any other suitable dressing tool. Anarm 12 is connected with the cas ing by being cast therewith and a vertical arm 14; is pivotally connected with the arm 12 by the screw 15. A work support 16 is adj ustably connected with the upper end of the arm 1A by the screw 17 and the parts may be provided with graduations 18 to facilitate the adjustment of the work support. A spring-19 tends toforce the arm IA away from the grinding wheel and an I adjustable stop 20 carried by an car 21 on the arm 14 and engaging a part of the arm 12 tends to limit the outward movement of said arm 1A. A plurality of interchangeable brackets may be connected with the casing by attaching the same to suitable supports. An angle bracket 22, is shown in Figures 2 and 5 for connecting the device to a barbers chair or the like. A clamp shaped bracket 23, shown in Figures 6 and 7 may be used for attaching the device to a barbers. clipper stand, orv a bracket 24, shown in Figure 8 may be used to attach the device to a table or bench. and 5 show a bracket 25 attached to the casing by the screws 26 and rotatably supporting a wheel 27 which is provided on its outer circumference with a file like surface 28. A ring gear 29 is attached to the wheel and is engaged by a gear of a train of gears 30, the shafts of which are carried by the bracket 25 and one of which meshes with a gear 31 which is connected with the shaft 9 of the casing. This wheel is used for corrugating scissors or other implements after they have been ground and dressed by the members 11 shown in Figures 1, 2 and 3. It will of course be understood that other tools can be connected with the shaft 9 if desired.

From the above it will be seen that the shaft 9 will be driven from the vertical shaft 2 when the same is driven by the power means attached to the flexible shaft. It will also be seen that the work support 16 can be easily and quickly adjusted at any Figures l suitable angle in relation to the grinding wheel and at any suitable distance from the grinding heel. By providing the brackets for attaching the device to a suitable support both hands of the operator will be left free to handle the instrument or tool being sharpened.

It is thought from the foregoing description that the advantages and novel features of my invention Will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is I 1. A device of the class described comprising a casing, a vertically arranged Worm shaft journaled therein, a transversely arranged shaft journaled in the casing, a gear thereon meshing With the Worm on the vertical shaft, interchangeable brackets adapted to be connected with the casing for supporting the same from a suitable support and means for attaching a flexible drive shaft to the vertically arranged shaft.

2. A device of the class described comprising a casing, a vertically arranged Worm shaft journaled therein, a transversely arranged shaft journalcd in the casing, a gear thereon meshing with the Worm on the vertical shaft, interchangeable brackets adapted to be connected With the casing for sup; porting the same from a suitable support, means for attaching a flexible drive shaft to the vertically arranged shaft, such means consisting of a coupling and a spring pressed ball in the casing for holding the coupling in position.

In testimony whereof I affiX my signature.

FRANKLIN E. HIERS. 

